package org.eclipse.jst.jsp.ui.internal.contentassist;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jdt.core.CompletionProposal;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.search.TypeNameRequestor;
import org.eclipse.jdt.ui.text.java.CompletionProposalLabelProvider;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jst.jsp.ui.internal.editor.JSPEditorPluginImageHelper;
import org.eclipse.swt.graphics.Image;
import org.eclipse.wst.sse.ui.internal.contentassist.IRelevanceConstants;
/**
* Use w/ JDT search engine to find all type names.
* Creates proposals from matches reported.
*
* @plannedfor 1.0
*/
public class JavaTypeNameRequestor extends TypeNameRequestor {
private int fJSPOffset = -1;
private int fReplacementLength = -1;
private List fProposals = new ArrayList();
private boolean fIgnoreAbstractClasses = false;
private CompletionProposalLabelProvider fLabelProvider = new CompletionProposalLabelProvider();
public void acceptType(int modifiers, char[] packageName, char[] simpleTypeName, char[][] enclosingTypeNames, String path) {
int offset = getJSPOffset();
int length = getReplacementLength();
// somehow offset or length was set incorrectly
if(offset == -1 || length == -1)
return;
// ignore abstract classes?
if(ignoreAbstractClasses() && Flags.isAbstract(modifiers))
return;
Image image = calculateImage(modifiers);
String containerNameString = new String(packageName);
String typeNameString = String.valueOf(simpleTypeName);
// containername can be null
String fullName = concatenateName(containerNameString, typeNameString);
String simpleName = Signature.getSimpleName(fullName);
StringBuffer buf = new StringBuffer(simpleName);
String typeQualifier = Signature.getQualifier(fullName);
if (typeQualifier.length() > 0) {
buf.append(" - "); //$NON-NLS-1$
buf.append(typeQualifier);
}
JavaTypeCompletionProposal proposal = new JavaTypeCompletionProposal(fullName, offset, length, fullName, image, typeNameString, typeQualifier, IRelevanceConstants.R_NONE, true);
proposal.setTriggerCharacters(JSPProposalCollector.getTypeTriggers());
fProposals.add(proposal);
}
private Image calculateImage(int modifiers) {
CompletionProposal p = CompletionProposal.create(CompletionProposal.TYPE_REF, getJSPOffset());
p.setFlags(modifiers);
//https://bugs.eclipse.org/bugs/show_bug.cgi?id=102206
char[] sig = new char[]{Signature.C_UNRESOLVED};
p.setSignature(sig);
ImageDescriptor descriptor = fLabelProvider.createImageDescriptor(p);
Image image = JSPEditorPluginImageHelper.getInstance().getImage(descriptor);
return image;
}
/**
* Concatenates two names. Uses a dot for separation. Both strings can be
* empty or <code>null</code>.
*/
public String concatenateName(String name1, String name2) {
StringBuffer buf = new StringBuffer();
if (name1 != null && name1.length() > 0) {
buf.append(name1);
}
if (name2 != null && name2.length() > 0) {
if (buf.length() > 0) {
buf.append('.');
}
buf.append(name2);
}
return buf.toString();
}
int getJSPOffset() {
return fJSPOffset;
}
void setJSPOffset(int offset) {
fJSPOffset = offset;
}
int getReplacementLength() {
return fReplacementLength;
}
void setReplacementLength(int replacementLength) {
fReplacementLength = replacementLength;
}
void setIgnoreAbstractClasses(boolean ignore) {
fIgnoreAbstractClasses = ignore;
}
boolean ignoreAbstractClasses() {
return fIgnoreAbstractClasses;
}
JavaTypeCompletionProposal[] getProposals() {
return (JavaTypeCompletionProposal[])fProposals.toArray(new JavaTypeCompletionProposal[fProposals.size()]);
}
}